Asus Zenfone 3 (5.5 ZE552KL 32GB) vs Samsung Galaxy A51 (SM-A515F/DSN)

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Side by side comparison between Asus Zenfone 3 vs Samsung Galaxy A51 phones, differences, pros, cons and full specifications. What's the better?

1/4/2020 2:03 PM, updated: 3/13/2023 9:26 AM

Compare Samsung Galaxy A51 X Asus Zenfone 3 (5.5 ZE552KL 32GB) 07Points

Specifications Compare Models Pictures

5.5"
IPS+

1080x1920

16
MP

8mp

3GB
RAM

Octa-core

3000
mAh

(Non removable)

19Points Samsung Galaxy A51 (SM-A515F/DSN) Compare Asus Zenfone 3 X

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A51 (SM-A515F/DSN)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

7 Advantages Asus Zenfone 3 (5.5 ZE552KL 32GB)	vs	19 Advantages Samsung Galaxy A51 (SM-A515F/DSN)
+2GHz 64bit Octa-core (14nm)2% More powerful processor, you can open your applications faster	vs	2.3GHz 64bit Octa-core (10nm)
+155 grams (5.43 ounces)11% Lighter	vs	172 grams (6.02 ounces)
+7.7 millimeters (0.3 inches)3% Thinner	vs	7.9 millimeters (0.31 inches)
+Aluminum body, glass front, plastic backAdvantage More resistant material	vs	Plastic body, glass front
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
3GB LPDDR3	vs	+6GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
32GB (24GB available)	vs	+128GB (107GB available)3 times More internal storage for applications and files
Until 256GB microSD, microSDXC	vs	+Until 1TB microSD, microSDXC3 times More external storage for files using memory cards
TFT Super IPS+	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
1080x1920 pixels	vs	+1080x2400 pixels25% Higher resolution screen
401 PPI	vs	+405 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.5"	vs	+6.5"18% Larger screen
(back) 16MP	vs	+(quad camera) 48MP + 12MP + 5MP + 5MP3 times Higher resolution main camera
(front) 8MP	vs	+(front) 32MP3 times Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 8.0 Oreo	vs	+Android 13Advantage Android 13 is newer and safer
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 600 Mbps100% Faster for surfing the internet and download files
Not supported	vs	+ANT+Advantage Sensors help you use the device
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
3000 mAh	vs	+4000 mAh33% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
10W	vs	+15W50% More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)	vs	+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely

24 Common items in both devices

eMMC 5.1

60Hz

16 million

Only digital zoom

LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus

HDR photo on both cameras

f/2.0 (aperture)

+17 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Change model		Choose the model
Model	Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Other model names	Zenfone 3 ZE552KL 3GB/32GB 5.5" Dual-SIM, Asus Libra	Samsung Galaxy A51 SM-A515F/DSN
Country or region available	(Europe), (Global, International), China	(Europe), (Global, International), United Arab Emirates, Pakistan, Taiwan
Brand	Asus	Samsung
Release date	7/12/2016	12/16/2019, Announced: 12/12/2019
Depth	7.7 millimeters (0.3 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	77.38 x 152.59 millimeters (3.05 x 6.01 in)	73.6 x 158.5 millimeters (2.9 x 6.24 in)
Weight	155 grams (5.43 ounces)	172 grams (6.02 ounces)
Build, materials	Aluminum body, glass front, plastic back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Display type	TFT Super IPS+	Super AMOLED
Screen size	5.5" inches	6.5" inches
Screen-to-body ratio	~70.6% (screen-to-body ratio)	~87.4% (screen-to-body ratio)
Display resolution	1080x1920 pixels (16:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	405 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	2.5D glass	Always-On Display
🤖 Operating System
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
System version	Android 6.0.1 Marshmallow	Android 10
Firmware update	Android 8.0 Oreo	Android 13
User Interface	ZenUI 3.0	One UI 2.5 / 3.1 / 4.1 / 5.0
⚙️ Processor
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Chipset	64bit: Qualcomm Snapdragon 625 (MSM8953) (14nm)	64bit: Samsung Exynos 9611 (10nm)
CPU	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)	Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 506 (650MHz)	ARM Mali-G72 MP3 (850MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
RAM memory	3GB LPDDR3	6GB LPDDR4X
Internal storage	32GB (24GB available) eMMC 5.1	128GB (107GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	600/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	Global: UMTS 850/900/1900/2100 Taiwan: UMTS 800/850/900/1900/2100 India: UMTS 850/900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat6 Global: LTE (1, 2, 3, 5, 7, 8, 20) Taiwan: LTE (1, 2, 3, 5, 7, 8, 18, 19, 26, 28) TD-LTE (38, 39, 40, 41) India: LTE (1, 3, 5, 8) TD-LTE (40) Brazil/USA: LTE (1, 2, 3, 4, 5, 7, 8, 17, 28)	LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Global: UMTS 850/900/1900/2100 Taiwan: UMTS 800/850/900/1900/2100 India: UMTS 850/900/2100	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	GPRS, EDGE
📷 Camera
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Back camera (main camera)	16 megapixels	(quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm
Main camera resolution	4608x3456 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	1/2" inches
Pixel size	feature not registered	0.8µm pixel
Autofocus	LDAF/PDAF: laser/phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): Optical stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	4K@30fps 1080p@30/60fps	feature not registered
📸 Front camera
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Front camera (secondary)	8 megapixels	32 megapixels
Front camera resolution	3264x2448 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.8µm pixel
🔉 Sound and multimedia
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Loudspeaker	Mono sound (not stereo) 24-bit/192kHz	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	4.2 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	4000 mAh
Charger, watts	10W (5V/2A) Wired charging	15W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Sapphire Black, Moonlight White, Shimmer Gold	• Colors: Prism, Crush Black, White, Blue, Pink
☢️ Radiation rate
	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Galaxy A51 (SM-A515F/DSN)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.369W/kg (head), 1.59W/kg (body)